Hip-hop powerhouse Kanye West held a private party at the Lower East Side cabaret club The Box for a jam session with John Legend earlier this week. There he debuted a new song acoustically, entitled "Mama's Boyfriend". Watch the clip after the jump.
In addition to the new song, he also played stripped down versions of his hits "Power", "Good Life", and "American Boy" with Estelle [Ed. Note: Pitchfork has it incorrectly (and hilariously) listed as "American Girl". Be warned. This is not a song about life-like dolls.]. He also remarked how he cried at a Rihanna concert. I can tell you this: I went to a Rihanna concert last night and I did not cry. I think I just one upped Kanye. BOOM. -hanna kasper